Análisis de intercambiabilidad en sistemas térmicos de alta y baja presión para mezclas biogás/metano/propano/hidrogeno.

Abstract

A novel method is presented which allows to analyze the interchangeability of gases for fuel blends as biogas with hydrogen, methane, natural gas, propane and hydrogen. Which are based on thermodynamic laws and two methodologies which allows measure methane number and fuel energy quality. Some data was previously tested. In addition, simulations were done in software, METHANE 3.0 and ANSYS-CFD. The simulations were done in low pressure (atmospheric burner) previously drawn in the INVENTOR software. Experimental data were used from four biogas mixtures with additions of propane, hydrogen and methane, all with a methane number of 100. Mixtures that serve to establish the method of interchangeability of gaseous fuels in high-pressure thermal systems such as engines or turbines. Different physicochemical combustion properties were estimated for these mixtures, such as the Wobbe index, energy density, high and low heating value, adiabatic flame temperature and laminar flame speed. The mixtures turned out to be interchangeable at high pressure but not for low pressure, that is, they can be interchanged in engines or turbines but not in burners, furnaces or boilers.